Closing device



FIG. 1 is a front view of the closing device;

FIG. 2 is a side view of the closing device;

FIG. 3 is a side view of the closing device;

FIG. 4 is a rear view of the closing device;

FIG. 5 is a top view of the closing device; and,

FIG. 6 is a perspective view of the closing device. 

The ornamental design for a closing device, as shown. 